1.It makes you attractive.
2.It changes your mood.
3.It is contagious.
4.It relieves stress.
5.It boosts your immune system.6.It lowers your blood pressure.
7.It releases endorphins,natural pain killers and serotonin-natural antidepressant.
8.It lifts the face and makes you look younger.
9.It makes you seem successful.
10.It helps you stay positive.